content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2012, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
   * Other names may be trademarks of their respective owners.]
   *
   * ----------------------------
   * DefaultOHLCDatasetTests.java
   * ----------------------------
   * (C) Copyright 2005-2008, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 29-Apr-2005 : Version 1 (DG);
   * 28-Nov-2006 : Extended equals() test (DG);
   * 22-Apr-2008 : Added testPublicCloneable (DG);
   *
   */
  
  package org.jfree.data.xy;
  
  import org.jfree.chart.util.PublicCloneable;
  import org.jfree.data.Range;
  import org.jfree.data.general.DatasetUtilities;
  import org.junit.Test;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  import java.util.Date;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotSame;
  import static org.junit.Assert.assertSame;
  import static org.junit.Assert.assertTrue;
  
  /**
   * Tests for the {@link DefaultOHLCDataset} class.
   */
  public class DefaultOHLCDatasetTest  {
  
  
  
  
  
      private static final double EPSILON = 0.0000000001;
  
      /**
       * A small test for the data range calculated on this dataset.
       */
      @Test
      public void testDataRange() {
          OHLCDataItem[] data = new OHLCDataItem[3];
          data[0] = new OHLCDataItem(new Date(11L), 2.0, 4.0, 1.0, 3.0, 100.0);
          data[1] = new OHLCDataItem(new Date(22L), 4.0, 9.0, 2.0, 5.0, 120.0);
          data[2] = new OHLCDataItem(new Date(33L), 3.0, 7.0, 3.0, 6.0, 140.0);
          DefaultOHLCDataset d = new DefaultOHLCDataset("S1", data);
          Range r = DatasetUtilities.findRangeBounds(d, true);
          assertEquals(1.0, r.getLowerBound(), EPSILON);
          assertEquals(9.0, r.getUpperBound(), EPSILON);
      }
  
      /**
       * Confirm that the equals method can distinguish all the required fields.
       */
      @Test
      public void testEquals() {
          DefaultOHLCDataset d1 = new DefaultOHLCDataset("Series 1",
                  new OHLCDataItem[0]);
          DefaultOHLCDataset d2 = new DefaultOHLCDataset("Series 1",
                  new OHLCDataItem[0]);
          assertEquals(d1, d2);
          assertEquals(d2, d1);
  
          d1 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[0]);
          assertFalse(d1.equals(d2));
          d2 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[0]);
          assertEquals(d1, d2);
  
          d1 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[] {
                  new OHLCDataItem(new Date(123L), 1.2, 3.4, 5.6, 7.8, 99.9)});
          assertFalse(d1.equals(d2));
          d2 = new DefaultOHLCDataset("Series 2", new OHLCDataItem[] {
                  new OHLCDataItem(new Date(123L), 1.2, 3.4, 5.6, 7.8, 99.9)});
          assertEquals(d1, d2);
  
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          DefaultOHLCDataset d1 = new DefaultOHLCDataset("Series 1",
                  new OHLCDataItem[0]);
          DefaultOHLCDataset d2 = (DefaultOHLCDataset) d1.clone();
          assertNotSame(d1, d2);
          assertSame(d1.getClass(), d2.getClass());
          assertEquals(d1, d2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning2() throws CloneNotSupportedException {
          OHLCDataItem item1 = new OHLCDataItem(new Date(1L), 1.0, 2.0, 3.0, 4.0,
                  5.0);
          OHLCDataItem item2 = new OHLCDataItem(new Date(2L), 6.0, 7.0, 8.0, 9.0,
                  10.0);
          // create an array of items in reverse order
          OHLCDataItem[] items = new OHLCDataItem[] {item2, item1};
          DefaultOHLCDataset d1 = new DefaultOHLCDataset("Series 1", items);
          DefaultOHLCDataset d2 = (DefaultOHLCDataset) d1.clone();
          assertNotSame(d1, d2);
          assertSame(d1.getClass(), d2.getClass());
          assertEquals(d1, d2);
  
          d1.sortDataByDate();
          assertFalse(d1.equals(d2));
      }
  
      /**
       * Verify that this class implements {@link PublicCloneable}.
       */
      @Test
      public void testPublicCloneable() {
          DefaultOHLCDataset d1 = new DefaultOHLCDataset("Series 1",
                  new OHLCDataItem[0]);
          assertTrue(d1 instanceof PublicCloneable);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
          DefaultOHLCDataset d1 = new DefaultOHLCDataset("Series 1",
                  new OHLCDataItem[0]);
  
              ByteArrayOutputStream buffer = new ByteArrayOutputStream();
              ObjectOutput out = new ObjectOutputStream(buffer);
              out.writeObject(d1);
              out.close();
  
              ObjectInput in = new ObjectInputStream(
                  new ByteArrayInputStream(buffer.toByteArray())
              );
          DefaultOHLCDataset d2 = (DefaultOHLCDataset) in.readObject();
              in.close();
  
          assertEquals(d1, d2);
      }
  
  }
  